Lappet-loom.



UNITED STATES Patented November 17, 1903. PATENT OFFICE.

FREDERIC JAMES DEARDEN AND GEORGE S. SHARP, OF NEW BEDFORD,MASSACHUSETTS, ASSIGNORS TO CROMPTON & KNOWLES LOOM WVORKS,

OF W ORCESTER, MASSACHUSETTS,

LAPPET A CORPORATION OF MASSACHUSETTS.

-LOO.Vl.

SPECIFICATION formingpart of Letters Patent No. 744,307, dated November1'7, 1903.

Application filed April 16, 1903.

To all whom it may concerns Be it known that we, FEEDEEIO JAMES DEARDEN,a subject of the King of Great Britain, and GEORGE S. SHARP, a citizenof the United States, both residing at New Bedford, in the county ofBristol and State of Massachusetts, have jointlyinvented certain new anduseful Improvements in Lappet- Looms, of which thefollowing is aspecification;

Our invention relates to lappet-looms or looms for weaving lappetfabrics by means of needles in the well-known way; and our inventionmore particularly relates to improvements in the construction of thelappet pattern-chain'operating mechanism.

The object of our invention is to do away with the cam-motion ordinarilyused for intermittent-ly rotating the cylinder of the lappet-patternchain and to rotate said cylinder directly from the lay throughintermediate connections, so that the movement of said cylinder and thelappet-pattern chain will always be in unison withlthe movement of thelay, and consequently the lappet-pattern indicated by the lappet-patternchain will be accurately obtained.

Our invention consists in certain novel features of construction of ourimprovements,

0 as will be hereinafter fully described.

We have only shown in the drawings sufficient portions of a lappet-loomwith our improvements applied theretoto enable those skilled in the artto which our invention be- 5 longs to make and use the same.

.Referring to the drawings, Figure 1 is an end elevation of alappet-loom with our improvements applied thereto. Thelappet-pattern-chain cylinder is shown in section and partially brokenaway. Fig. 2 is a detached detail showing the operating-levers and theconnections to the needle-bars; and Fig. 3 is an edge View of theoperating-pawl and connections looking in the direction of arrow at,

5 Fig. 1. V

In the accompanying drawings, 1 is the loom frame; 2, the lay-swordpivotally supported at its lower end; 2, the lay; 3, the connector fromthe lay to the crank-shaft 4.-

5o 5 is a'stand supported on the loom-frame 1 Serial No. 152.837. Nomodel.)

and carrying at its upper end a frame 6, on which are bearings for theshaft 7 of the lappet-pattern-chain cylinder 8 and the ratchetwheel 9,fast on the shaft 7 or attached to the cylinder 8. 10 is alappet-pattern chain which is supported on the guide 11 and the pattern-chain cylinder 8 and has a rotary motion thereon. Extending over thelappetpattern chain 10 is a lever 12, pivoted at one end on a stud 13 onthe frame 6. The lever 12 carries a roll 12, which rides on thepattern-chain 10. The other end of the lever 12 is connected by a rod orwire 14 with one end of a lever 15, centrally pivoted on a stud 16 one.stand 17. (See Fig. 2.) The other end of the lever 15 is connected by arod or connector 18 with one arm of an angle-lever 19, pivoted on astand 20 on the lay 2. The other arm of the lever 19 is connected by alink or wire 21 with the needle-bar (not shown) carrying thelappet-needles.

All of the above parts may be of the usual and well-known constructionordinarily employed in lappet-looms.

We will now describe our improvements.

To the loom side or frame 1 at the rear portion and upon the inner sideis in this instance bolted a plate 22, carrying a stud 23, on which ispivotally mounted an angle-lever 24, preferably having longitudinalslots 24 and 24", one at the outer end of each arm. In the slot 24' isadjustably secured a bolt 25, on which is mounted the hub 26 of theactuating-pawl 26, the upper end of which is adapted to engage theratchet-wheel 9 of the lappet-pattern-chain cylinder 8. A spring 27,attached to the pawl 26 and to the stand 5, holds the pawl 26 inengagement with said ratchet-wheel 9. In the slot 24 in the anglelever24 is adjustably secured one end of a link or connector 28. The otherend of said link 28 is pivotally secured to the upper end of thelay-sword 2 at 28'. The forward movement of the lay, through the link 28and the angle-lever 24, communicates an upward motion to the pawl 26 torotate the ratchet-Wheel 9, the pattern-cylinder 8, and thelappet-pattern chain 10 in unison with the movement of the lay. Therearward movement of the lay, through the link 28 and angle-lever 24,

moves down the pawl 26 and leaves the ratchet-wheel 9, the pattern-chaincylinder 8, and the lappet-pattern chain 10 stationary. It will thus beseen that the intermittent motion of the lappet-pattern chain iscommunicated directly from the lay and in unison with the movement ofthe lay, thus insuring greater accuracy in the pattern produced on thefabric by the lappet-needles.

It will be understood that the details of construction of ourimprovements may be varied, if desired.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-- i 1. In a lappet-loom, the combinationwith the lay, the lappet-pattern-chain cylinder, and the actuating-pawltherefor, of connections intermediate said pawl and the lay tocommunicate a reciprocating movement to said pawl from the rockingmovement of the lay, said connections comprising a pivoted angle-leverconnected with the pawl, and a link or connector connected with saidlever and with the lay, substantially as shown and described.

2. In a lappet-loom, the combination with the lay, thelappet-pattern-ohain cylinder, and the actuating-pawl therefor, ofconnections intermediate said pawl and the lay, comprising a pivotedangle-lever, adjustably connected to said pawl at one end, andadjustably connected at its other end to a link or connector to the lay,and said link or connector, substantially as shown and described.

FREDERIG JAMES DEARDEN. GEORGE S. SHARP.

Witnesses:

GEORGE N. GARDINER, Mosns DEWHURST.

